Datsun love:

1. Doesn't have to be justified
2. Means at least a 3 car garage
3. Having a garden shed full of parts
4. Having under the house full of parts
5. Considering putting plywood down in the roof cavity to store more parts.
6. Being nice to everyone you know, so you can store parts/cars at their place.
7. Old friends inviting you to a party, and you turn them down because you are in the middle of another Datsun project...they don't understand of course.
8. Daily ritual of various online sources.. trading post, yahoo, ebay sites looking for parts..

Maybe this is "Datsun Mania", but I'm sure that I'm not the only one here who lives like this..